Controlling device for pneumatically-operated motors.



T. DANQUARD & W. JJKEELEY. CONTROLLING DEVICE FOR PNEUMATIGALLY OPERATED MOTORS APPLICATION I'I/LED NOV. 12,1910.

993,038. Patented May 23,1911.

2 SHEETS-SHEET 1.

T. DANQUARD & W. J. KEELEY. OONTRDLLIING DEVICE-FOR PNEUMATIGALLY OPERATED MOTORS.

I APPLICATION FILED NOV. 12,1910.

993,038, Patented May 23, 1911.

2 SHEETS-SHEET 2.

sew UNITED l s ms gem QFFIGE;

- i -mliom-esaiimauimp em wiLtrm-"tri 5 eensiderin g e 1 detfiled descriptien' of the" the position of the. lie-{r011 yalve'I and the pes'ition Qf the driving pii1i011.ai1d Clutch be the 'ordin'az y eon'st-ruetie z and their. opera eeled. M 4 j,

will be, noted that j the partition D divides the Yillfe lJQY into van" upper compartment; G

and 1o*.\-' e 1aeompartrnent--, H. The passage has an gp'ening ,eommunicating with the 7 upper: compartment,,whieh opening is con-'1 tt olled b a, re-rollyalveL and+iii=epening. eomm uni'catingwi ith the low-e1: eempartmenti H which controlled by a" governing valve. J The. partition D lias a pass age K calledthe n 1z 1i-11;p rt formed through the same,

wfl1'ieh. ;passage 'eontnelled by a, tempo.

valve box ahcl'eon m nicetes .to the lower,

cOmp art-IiientfEI by ;1 .pessage cut in the side -of the hal te-box, end the-meviible leaf fthe 1'egula. tei' pneumatic is connectedby i -suit- 7 5 able link to the governing valve, as shown A'spiflng Npressee outwardly on the'reg'ulator pneumatic andtends normally to tensibn the regulator pneumatic to move A. fe-i'ellpentrQlling l'e'vtlO is ihoiihtedf in the frame pf the "inst'mmeiit a 'nd isv con nected by'shafts, levers, and-[links] t contrb'l' r qulited in the'Qfra-me bf the'instl ument' and}; 'isfc'onineetedf by shafte le i'efjs', and links to] c o11tr01th e tempo val "anormal or fixegl degree, depending; upon thefpressure or tension of the spring N on" -the regulator pneumatiqso thatthe motor ,will be operatedeve'nlyand smoothly at the speed determined by the. varyin 5 "ments of the ,teinpovalveLwithre ation to the passageiK; and so that-any intermitting or pulsatingaction from the exhausting bel lows willnot afiectthe'smoothoperation of the pneumatic motor; For. example, if the.

tempo; vfal've L;shouldlbe moved tothe right uncover. more of the passage K to, cause the motorztorun'faster,'the--increase of res- Y -1n--'the"lower. compartment H wil instantly act? on the :regulator pneumatic M open."th'egoverning valve J wider to meet the new conditionand thus to maintain the vacuum-in; the lower compartment at the degree determined by the spring N so that the increased speed ofthe motor will be even and smooth and will be determined by the increased opening otthe passage K. On the other'hand, if the tempo valve L should be 1 moved to the left to cover moreof the pasj v compartment H willlet the fixed tension of sage K, the. decrease of pressure in the lower thespring N act on the movable leaf-of the regulator pneumatic to move the same'outwardlyf to close the governing valve .I, so"

that the pressure determined by the tension of the spring will be maintained in the lower compartment G, and so' that themotor will run attheadjustedislower speed, smoothly,

depending upon theirestrictingadjustment oftlieytempo'valve L. Correspondingly, an

increase of the exhaust fromfthe exhausting .will allow the spring 'N to pull out on the bellowswill act through the pipe F and cause the regulator pneumatic to close the" governin valve J partially, while a decrease of the-ex aust from the, exhausting bellows movable leaf of the regulator pneumatic and this open the governing valve J widen Thus, 'by keepi'ng the exhaust lll'the lower compartment determined by the tension of the spring N, the motor-will-be run evenly' and smoothly at'any speed obtained by anyadjustment of thertempo' valve L relatively to the passage 'K? The, tension of'the spring 1 N- is fixed when the parts are originally assembled and- .adjusted and once fixed isnever disturbed. -By normal tension, we mean that the spring will assume acertain position in respect toa certain pull thereon by the movable leaf of the pneumatic M or in other words that thepul of the spring on the pneumatic M is always the same for any given position of said pneumatic M.. By this arrangement the spring N, pneumatic M and governing valve J perform only the function of keepin the motor at'the-speedcalled for-"by thea' justmentof the valve L,- the valve P, or both valves in combination,

and have nothing to do with any adjustment of the speed of the motor.

to causeithe movable member ofthe same to lows': The motor to the valve box is connected to a When the top of the re-roll lever 10 is thrown to the left, the pinion is disconnected from the gear on the take-up-roll or spool and the motor is connected through the clutch to operate the musicspool; and at the same time, the lB-IOll valve I is moved to uncover the opening into the passage E so that the I exhaust from the exhaust bellows will be connected directly to the passage B without passing through the compartment H, whereby the'muslc sheet can be re-rolled rapidly. TlllS action can take place, although the governing valve does not then work, because the pulsating and intermitting action obtainedis immaterial, as the instrument is not being. played. The parts before described are arranged in the'ordinary way.

The objectofthe present invention is to provide an. auxiliary means so that the motor,can be run faster or, slower and still under the control of the springtensioned regulator pneumatic and governing. valve to draw the note sheet forward for playing without varying the regulator pneumatic block or coupling 12 arranged on top of an 7 auxiliary or supplemental valve box 13. ,A

passage 14 called the auxiliary port .is cut in the --top ofthe valve box C so as to allow communication between the upper compartment G and the auxiliary valve box-13." A

pipe 15 extends .throughlthe top of the valve box-1C and down throughthe partition D so as to aflford a; communicationbetwen the auxiliary zvalve box- 13 and. the lower 'comp'artment H. This pipe thus forms a direct passage-from the motor tothe governing valve, independent of the tempo valve." An auxiliaryvalve P, is'arranged in the aux-11- iary,valve box 13 so as to control the, opening or passage. 14 and the mouthof. the pipe 15. Connected to the auxiliary valveis a wireorrod 16 which is adjustablyconnected to, another rod '17, which latter is connected toan arm or lever -18-mounted on the- 20 and 21 secured to the frame of themstrument. A lever 22 is secured on the front end of the shaft 19 in convenient po'sition to the levers 10 and Hand this lever 22 .125 rear end of asha'ft19 journaled in bearings forms the operating handle for the auxiliary valve "P. Extending clown frpm thebearing 2015a block 23 securedi to'th'e -sicles of which are tension springs"2&{24,f the-ends f" 5 which extend heyoi'itl 7 the" rear erid of the ble'eli 23 and e gage the ar nvl8i'up'on '0igpdsite sides thereof, pieces offelt ersuft'pzick ing' being "wquiicl around the rends" of the springs endhearirig on '-the"reav"edges of 10' positieiito cause a noiseless operfitioifi'ofthe parts; The 1-prings thus :w1ll"2tet td-keep' the arm 18 centered-'01" nerma'lly-in' the pp ,S1tien' shown 'inrFigtfl. If 'the'leyer. 22

15. sheuldibe operated. to swing 'thelO er'eIijd normally in an; intei'mediate' peeitien. I j The normal positien efthe Auxiliary Yalvel is shown in Fig; 3. In thisjnrmal PGSIlLlOIh the auxiliely valve Completely eavers the end ef the pipe l and does n t c0v'erthe passage 14. .Hence alljthe air cqming do w -threughi the" passage B will! go through ,'-the passege '14 v and the speed 9f 'the' motor will b n r l ed y t dj tmen Qtmp Valve LL Suppeeehow that the teppf the "will ,move the auxiliary 'velve Pto the left" and'lwillQmore" or less uncover-the topfbf pipe 15, depending upon the extent (ifthe moyement 50f the lever- 221 In this} .pp'sitio'rl the pipe. and; thus the eemrhunieation be;

' tween the passage Byand the lpwer cotupert-r ment will :be mcr'e'asetlin s ze and the motbr will; be :speeded: ,up, in; epera tion just as if, the tem'pe valve L were moved to they right tofl ncojver the Ipassage'K we greater extent, and with the impprtautpoint that the motelwill stilllren ia in i ider the nor mal. er regular. eolitrellirig Iaetieu; of the 9' sgring .c'oritro'lled regulator-pneumatic. M andt .i i

e governing, yalve J I thei: wer'ds, this' operation -doe'snot-f-}in any; way affeet the normal operatipnj 6t .1 ithe' regulator; p ne uf matic M andegoyemmgivalv'e J Qiithe-nM-J 5 On the other hand, i'f'the'top fatlui lever.

valvesP will be movedf toltlie-zfiigi it, es? shmwfr in- Fig-: 3,- jwhich: will. irestrlqt the :floisvefromg and" with;

iire or tension ofthe sp iyg N- qx i the regu- -mat1c, although it may he 11 .melipesition; y The left hand spring 24 willf m th e-me e and em em;

tire

etljust-ment (if the tempg fzglye L eenih'med with the adju stn ent' of 'ifli fzfii ii' hii speed "of the ineto'r is a the? n rmal tensioh' of tl brought backte ridrmal ifitwn The detziilsfand arra i'gg en e ite v 'xe re' serihetl be greatly; niq h zr' el i level ng? IHm'fing thus fully-(leis ,o'uig uririj tion whatwe clai n an d" off 21- inujsical instrument, eepi r l eniigi l y p rate t -teeth i fiaglll fl i: mafia. a governing vetheee; PFPEWEFZHIS temi -a ve mecha ni mige mnge i betmeee of a musical instrument, comprising a pneumatically operated motor, aspring tensioned regulator pneumatic, a governing valve therefor, a tempo valve arranged to control the flow from the motor, a direct passage from the motor to the governingv-alve, and an auxiliary valve for controlling the flow from the motor to the controlling valve ment containing the tempo valve, and .a direct passage from the motor into the compartment containing the governing valve, and auxiliary valvemechanism for controlling these passages.

5. A driving mechanism for the note sheet of a musical instrument, comprising a pneuinatically operated motor, a valve box divided into twocompartments, a passage con-- meeting the two compartments, a tempo valve in one of the compartments controlling said passage, a connection from the other compartment to the exhaust, a spring tensioned regulator pneumatic and a governing valve for regulating the tension in this compartment, a supplemental valve box, a connection from the motor to the supplemental valve box, a passage from the supplemental valve box into the compartment containing the tempo valve and a direct passage from the supplemental valve box into the compartment'containing the governing valve, and an auxiliary valve controlling said passages.

6. A driving mechanism for the note sheet of a musical instrument, comprising a pneumatically operated motor, a valve box divided into two compartments, a passage connecting the two compartments, a tempo valve in one. of the compartments controlling said passage, a connection from the other compartment to the exhaust, a spring tensioned regulator pneumatic and a governing valve for regulating the pressure in this compartment, a supplemental valve box, aconnection from the supplemental valve box into the compartment containing the tempo valve, a direct passage from the supplemental valve box into the compartment containing the governing valve, an auxiliary valve controlling said passages, and means for normally holding the auxiliary valve to open the passage into the compartment containing the tempo valve and to close the direct passage,

' 7. A driving mechanism for the notesheet iliary tempo valve mechanism and controlof a musical instrument, comprising a pneumatically operated motor, a spring tensioned regulator pneumatic and governing. valve therefor, a tempo valve arranged to throttle the flow from the motor, an auxiliar tempo valve mechanism for increasing or diminishing the flow from the motorwithout affecting the normal tension on the regulator pneumatic; and means for holding the aux.-- iliary tempo valve mechanismnormally in an intermediate position. 8. A driving mechanism for the note sheet a of a musical instrument, comprising a pneumatically operated motor, a spring tensioned regulator pneumatic and governing valve therefor, a tempo valve arranged to throttle the flow from the motor, an auxiliary tempo valve mechanism'for increasing or diminishing the flow from the motor Without affecting the normal tension on the regulator pneumatic, an operating lever and connections therefrom to the auxiliary tempo valve mechanism, and means for holding the. auxling lever normally in an intermediate positioni I 9. A driving mechanism for the note sheet of a musical instrument, comprising a pneumatically operated motor, tWocompartments, a bellows or exhaust connection from one of the compartments, a spring tensioned regulator pneumatic and governing valve for governing the tension in said compartment, a passage connecting the'two' compartments,

a tempo valve controllin'g the same, a pas? sage from the motor into the compartment containing the tempo valve, a direct passage from the motor into the-compartment containing the governing valve, an auxiliary valve mechanism for controlling these passages, and means for maintaining the auxil-- iary valve normally 1n position to uncover the passage to the.comp'artmentcontaining the tempo valve and to cover the direct passage. 1

i 10. A driving mechanism for the note sheet of a musical instrument, comprising a pneumatically operated motor, a main port and main tempo valve arranged to control the flow from the motor, a direct passage from the motor arranged independently of said main port, and an auxiliary valve' and port for controlling the flow from the motor through the main port, saidauxiliary valve being also ar through said direct passage,

11. A 'drivingmechanism for the note sheet of a musical-instrument, comprising a ranged to control the flow pneumatically operated motor,.a main port and main tempo valve arran ed to control the flow from the motor, a irect. passage fromthe-1notorarranged inde endently of said n1ain'port,'an auxiliary va ve and .port for controllingthe flow from the motor through the main port, said auxiliary valve.

being also arranjged to gofitrnllheflew through said direetpessa normally keeping said a x lmyy vaive iji p0 eitiqn' to close said directpassage and open 'said auxiliary port, I

12. A main drivin :ifd r th: e note sheet of a v 1i.1.11'- s11 eomprisi'ng e pneumatically bpelgted motor' a main ii to -eonport and main tempe Wi l e arrange trelthe' flow from-the meter, 1; direct pa's-. sage fi om'the motor arranged independently of said main port, an 'ailx iliary fialv iin'dpolit for controllingethe fijow from the motor throughfihe main port, saidziuxiliery Ygl-ve beg-- ing also arranged to coxitrol the flow thrbugh saiddirect passage, a, lever and eonfieeti'ens j and means for,

-. between theirende $810 1101 for adjusting fihe auxiliary tempo valve inthe lever I the auraligirfem o valveemi fever normally in an .bea'r agaihst, t 'e-bloek and eng'a :intei-medmte positieri,

' In t'esti'monyuwllereef we have. llei'eunte set our hamis, bathe-presence of two sub scribiirig witnesfiea-lf moms DANQUARD.

WM 'J. KEELEY.

Witnesses:

Wu. J BARTON, H 'RB RT SIMPSON.- 

